Home / 16,818.67-25,228.02-5,131.90

Finding the Fourth Proportional to 16,818.67, 25,228.02 and 5,131.90

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Solution

The fourth proportional to 16,818.67, 25,228.02 and 5,131.90 is: 7,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.67 : 25,228.02 = 5,131.90 : x
  2. Step 2: Convert to fraction form
    16,818.67/25,228.02 = 5,131.90/x
  3. Step 3: Cross multiply
    16,818.67x = 25,228.02 × 5,131.90
  4. Step 4: Simplify right side
    16,818.67x = 129,467,675.84
  5. Step 5: Solve for x
    x = 129,467,675.84/16,818.67
  6. Step 6: Final answer
    x = 7,697.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.